"Star Wars" starlet says humankind will eventually look back with revulsion at factory farming

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Natalie Portman says humans will eventually realize the backwardness of factory farming.

Updated at 1:15 AM PST on Friday, Oct 30, 2009

Natalie Portman is known for her vegetarian diet – but now, the star says, she's become not only vegan, but a an activist for the lifestyle.

"Some things are just wrong," she wrote in a Huffington Post editorial, citing author Jonathan Safran Foer's new nonfiction work, "Eating Animals," for convincing her to go vegan after 20 years as a vegetarian.

"Perhaps others disagree with me that animals have personalities, but the highly documented torture of animals is unacceptable, and the human cost Foer describes in his book, of which I was previously unaware, is universally compelling," she wrote.

She went on to discuss the medical and bacterial issues – including the rise of swine flu – that Foer argues factory farming has contributed toward.

"Foer details the copious amounts of pig s*** sprayed into the air that result in great spikes in human respiratory ailments, the development of new bacterial strains due to overuse of antibiotics on farmed animals, and the origins of the swine flu epidemic, whose story has gripped the nation, in factory farms," she wrote.

Natalie also revealed a personal anecdote from her college years at Harvard that helped inform her beliefs.

"I remember in college, a professor asked our class to consider what our grandchildren would look back on as being backward behavior or thinking in our generation, the way we are shocked by the kind of misogyny, racism, and sexism we know was commonplace in our grandparents' world," she wrote. "He urged us to use this principle to examine the behaviors in our lives and our societies that we should be a part of changing. Factory farming of animals will be one of the things we look back on as a relic of a less-evolved age."